Title:
METHOD FOR PRODUCING SUBSTRATE HAVING HARD COAT LAYER CONTAINING FUNCTIONAL FINE PARTICLES
Document Type and Number:
WIPO Patent Application WO/2019/159909
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for producing a substrate having a hard coat layer which has excellent wear resistance and in which the properties of functional fine particles can be maintained over a long period of time even under a severe usage environment. The method for producing a substrate having a hard coat layer is characterized in that: (1) a hard coat layer mainly composed of a resin is provided in a semi-cured state on a substrate such that equation (a) below is satisfied, (a) 12≤X≤600 (in the equation, X represents the time (sec) required for the (Δ) haze of a hard coat layer-attached glass to exceed 5% after the hard coat layer-attached glass, in which a semi-cured hard coat layer having a thickness of 10 µm is laminated on one surface of a float soda glass having a thickness of 3 mm, is immersed in an N-methyl pyrrolidone solvent at 40°C); (2) a dispersion in which functional fine particles are dispersed in a solvent satisfying equation (b) below is applied onto the semi-cured hard coat layer, (b) 12≤X×(A+0.2)2≤90 (in the equation, X is as defined in equation (a), and A represents the difference between the solubility parameter (MPa0.5) of the dispersion solvent and the solubility parameter (22.3MPa0.5) of the N-methyl pyrrolidone); and (3) the semi-cured hard coat layer is completely cured.
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Inventors:
EKINAKA TATSUYA (JP)
Application Number:
PCT/JP2019/004913
Publication Date:
August 22, 2019
Filing Date:
February 12, 2019
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
B32B27/08; B32B27/20; C08J7/043; C08J7/044; C08J7/046
Domestic Patent References:
| WO2013105656A1 | 2013-07-18 | |||
| WO2015147295A1 | 2015-10-01 |
Foreign References:
| JP2017082199A | 2017-05-18 | |||
| JP2016136280A | 2016-07-28 | |||
| JP2016173492A | 2016-09-29 | |||
| JP2005148376A | 2005-06-09 | |||
| JP2013210414A | 2013-10-10 | |||
| JP2011099056A | 2011-05-19 | |||
| JP2003039607A | 2003-02-13 |
Other References:
See also references of EP 3753974A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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